title: Regulation of MIR genes in response to abiotic stress in Hevea brasiliensis.
abstract: Increasing demand for natural rubber (NR) calls for an increase in latex yield and also an extension of rubber plantations in marginal zones. Both harvesting and abiotic stresses lead to tapping panel dryness through the production of reactive oxygen species. Many microRNAs regulated during abiotic stress modulate growth and development. The objective of this paper was to study the regulation of microRNAs in response to different types of abiotic stress and hormone treatments in Hevea. Regulation of MIR genes differs depending on the tissue and abiotic stress applied. A negative co-regulation between HbMIR398b with its chloroplastic HbCuZnSOD target messenger is observed in response to salinity. The involvement of MIR gene regulation during latex harvesting and tapping panel dryness (TPD) occurrence is further discussed.
authors.affiliation: Centre de Coopération Internationale en Recherche Agronomique Pour le Développement, Unité Mixte de Recherche Amélioration Génétique et Adaptation des Plantes Méditerranéennes et Tropicales, Avenue Agropolis, Montpellier F-34398, France. pascal.montoro@cirad.fr.
authors.forename: Virginie
authors.initials: V
authors.lastname: Gébelin
authors.forename: Julie
authors.initials: J
authors.lastname: Leclercq
authors.forename: Songnian
authors.initials: S
authors.lastname: Hu
authors.forename: Chaorong
authors.initials: C
authors.lastname: Tang
authors.forename: Pascal
authors.initials: P
authors.lastname: Montoro
mesh_terms: D017343:Genes, Plant / Q000235:genetics*; D028482:Hevea / Q000235:genetics*; D006728:Hormones / Q000378:metabolism; D007840:Latex / Q000378:metabolism; D035683:MicroRNAs / Q000235:genetics*; D052585:Phloem / Q000235:genetics*; D012408:Rubber / Q000378:metabolism*; D013312:Stress, Physiological / Q000235:genetics*
chemical_list: D006728:Hormones; D007840:Latex; D035683:MicroRNAs; D012408:Rubber